Material Selection for High-Speed Surgical Drills: Balancing Strength and Biocompatibility

Abstract

High‐speed surgical drills are essential tools in modern minimally invasive procedures, where precision, durability, and safety are paramount. The material selection for these drills is critical because it must balance high mechanical strength and wear resistance with excellent biocompatibility. This study explores the challenges and strategies involved in selecting materials that can sustain high rotational speeds and mechanical loads while remaining inert and non‐reactive within the human body. Our investigation considers advanced alloys, ceramics, and composite materials, evaluating their mechanical properties, corrosion resistance, and tissue compatibility. A systematic review of existing literature was combined with experimental data to identify promising candidates. The methodology included mechanical testing under simulated surgical conditions, in vitro biocompatibility assays, and finite element analysis for stress distribution. Results indicated that novel titanium-based alloys, enhanced with ceramic reinforcements, offer a significant improvement in fatigue resistance and wear performance, while maintaining a high degree of biocompatibility compared to conventional materials. The findings also suggest that surface modifications, such as laser treatment and ion implantation, further improve the material performance. This comprehensive study provides guidelines for selecting and processing materials in high-speed surgical drills and recommends future research directions, including longterm clinical evaluations and the integration of smart sensor technologies for real-time performance monitoring.